package com.summer.reggie.config;

import com.summer.reggie.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

/**
 * 作者:夏天
 * qq:1205232048
 */
@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport{

     /**
      * 该方法使用来解决静态资源映射问题的, 由于我使用该方法无效, 就不用了
      * @param registry
      */
     @Override
     protected void addResourceHandlers(ResourceHandlerRegistry registry) {
         log.info("开始静态资源映射");
         registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
         registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
     }

    /**
     * 扩展mvc框架的消息转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        log.info("扩展消息转换器");
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter = new MappingJackson2HttpMessageConverter();
        //设置对象转换器, 底层使用jackson将java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
}
